The shape memory (SM) polymers with superior SM properties were successfully fabricated based on melt blending of natural rubber (NR) and ethylene octene copolymer (EOC) at various crystallinity of EOC phase. The differential scanning calorimetry analysis, mechanical properties, temperature scanning stress relaxation, and shape memory properties were studied. Results revealed that the mechanical and thermal properties of the prepared NR/EOC blends improved as a function of amount of ethylene fraction in the EOC phase. The ethylene segment of EOC in the NR/EOC blend is triggered as a stimulus-sensitive domain. The shape memory properties in terms of shape fixity and shape recovery efficiencies of the blends tended to increase with the increasing of crystalline segments in the blends. The shape memory properties of the prepared blends substantially exceed the best performance (close to 100%) by blending the NR/EOC at 50/50 parts by weight, having 62%–80% of ethylene content in the EOC phase, which corresponds to approximately 3°–16° of crystallinity of EOC phase in the blends.

Cryotherapy is widely used in health contexts, including first aid, treating acute musculoskeletal injuries and women undergoing chemotherapy. Studies have shown that frozen gloves can help reduce nail toxicity for women undergoing chemotherapy. Nail toxicity is a common issue among people undergoing chemotherapy, causing disfigurement and pain. Although cooling gloves have been shown to reduce nail toxicity, the range of temperatures used remains unclear, often resulting in discomfort. In this innovative study, we used a quasi-experimental, two group pretest-posttest design to evaluate the effectiveness of Chemo-Cooling Gloves developed by the researchers to help prevent nail toxicity. We assessed satisfaction with the gloves among 27 Thai women undergoing chemotherapy who were purposively recruited according to the inclusion criteria from a chemotherapy center of a university-affiliated hospital in a southern region of Thailand. Participants underwent a regimen of cyclophosphamide in combination with doxorubicin and 5-fluorouracil every 21 days for six cycles. Each participant served as their own control, wearing the cooling glove on the one hand randomly selected, while the other hand remained unprotected and acted as the control. Data were collected using a demographic questionnaire, the Common Terminology Criteria for Adverse Events version 3.0, and the Chemo-Cooling Gloves Satisfaction Questionnaire. Data analysis utilized descriptive statistics and Cochran’s Q test. The results revealed that nail toxicity was significantly lower in the protected hand than in the control hand during cycles 2 to 3 and 2 to 4, but no significant difference between the two hands during cycles 2 to 5 and 2 to 6. Overall satisfaction with the Chemo-Cooling Gloves was at the highest level. The use of frozen gloves aligns with evidence-based practice, as supported by our study. Nurses need to be trained in the proper use and application of the gloves and educate patients on the benefits and correct usage to maximize comfort and efficacy. By incorporating the Chemo-Cooling Gloves into routine practice, nurses can help improve patient adherence to chemotherapy regimens and potentially enhance treatment outcomes.